<template>
    <div class="search-div">
        <!-- 搜索表单 -->
        <el-form label-width="70px" size="small">
            <el-form-item label="角色名称">
                <el-input v-model="queryDto.roleName" style="width: 100%" placeholder="角色名称"></el-input>
            </el-form-item>
            <el-row style="display:flex">
                <el-button type="primary" size="small" @click="searchSysRole">
                    搜索
                </el-button>
                <el-button size="small" @click="resetData">重置</el-button>
            </el-row>
        </el-form>

        <!-- 添加按钮 -->
        <div class="tools-div">
            <el-button type="success" size="small" @click="addShow">添 加</el-button>
        </div>

        <!-- 添加角色表单对话框 -->
        <el-dialog v-model="dialogVisible" title="添加或修改角色" width="30%">
            <el-form label-width="120px">
                <el-form-item label="角色名称">
                    <el-input v-model="sysRole.roleName" />
                </el-form-item>
                <el-form-item label="角色Code">
                    <el-input v-model="sysRole.roleCode" />
                </el-form-item>
                <el-form-item>
                    <el-button type="primary" @click="submit">提交</el-button>
                    <el-button @click="dialogVisible = false">取消</el-button>
                </el-form-item>
            </el-form>
        </el-dialog>

        <!--- 角色表格数据 -->
        <el-table :data="list" style="width: 100%">
            <el-table-column prop="roleName" label="角色名称" width="180" />
            <el-table-column prop="roleCode" label="角色code" width="180" />
            <el-table-column prop="createTime" label="创建时间" />
            <el-table-column label="操作" align="center" width="280" #default="scope">
                <el-button type="primary" size="small" @click="editShow(scope.row)">
                    修改
                </el-button>
                <el-button type="danger" size="small" @click="deleteById(scope.row)">
                    删除
                </el-button>
                <el-button type="warning" size="small" @click="showAssignMenu(scope.row)">
                    分配菜单
                </el-button>
            </el-table-column>
        </el-table>
        <!-- 分配菜单的对话框 
// tree组件添加ref属性，后期方便进行tree组件对象的获取
-->
        <el-dialog v-model="dialogMenuVisible" title="分配菜单" width="40%">
            <el-form label-width="80px">
                <el-tree :data="sysMenuTreeList" ref="tree" show-checkbox default-expand-all :check-on-click-node="true"
                    node-key="id" :props="defaultProps" />
                <el-form-item>
                    <el-button type="primary" @click="doAssign">提交</el-button>
                    <el-button @click="dialogMenuVisible = false">取消</el-button>
                </el-form-item>
            </el-form>
        </el-dialog>
        <!--分页条-->
        <el-pagination v-model:current-page="pageParams.page" v-model:page-size="pageParams.limit"
            :page-sizes="[10, 20, 50, 100]" @size-change="fetchData" @current-change="fetchData"
            layout="total, sizes, prev, pager, next" :total="total" />
    </div>

</template>

<script setup>
import { ref, onMounted } from 'vue';
import { GetSysRoleListByPage,AddSysRole,UpdateSysRole,DeleteSysRole,GetSysRoleMenuIds,DoAssignMenuIdToSysRole} from '@/api/sysRole.js'
import { ElMessage, ElMessageBox } from 'element-plus';

// 定义数据模型
let list = ref([])      // 角色列表
let total = ref(0)      // 总条数
const pageParamsForms = {
    page: 1,
    limit: 3
}
// 分页参数
const pageParams = ref(pageParamsForms)
// 查询参数
const queryDto = ref({ "roleName": "" })
// 添加角色表单对话框是否显示
const dialogVisible = ref(false)

const sysRoleForms = {
    id: "",
    roleName: "",
    roleCode: ""
}
// 添加角色表单数据模型
const sysRole = ref(sysRoleForms)

// 钩子函数
onMounted(() => {
    fetchData()
})
///////////为角色分配菜单
const defaultProps = {
  children: 'children',
  label: 'title',
}
const dialogMenuVisible = ref(false)
const sysMenuTreeList = ref([])

// 树对象变量
const tree = ref() 

// 默认选中的菜单数据集合
let roleId = ref()
const showAssignMenu = async row => { 
  dialogMenuVisible.value = true
  roleId = row.id
  const { data } = await GetSysRoleMenuIds(row.id)   // 请求后端地址获取所有的菜单数据，以及当前角色所对应的菜单数据
  sysMenuTreeList.value = data.sysMenuList
  tree.value.setCheckedKeys(data.roleMenuIds)   // 进行数据回显
}
//////////////////

// 操作方法：列表方法，搜索方法
// 列表方法
const fetchData = async () => {
    const { data, code, message } = await GetSysRoleListByPage(pageParams.value.page, pageParams.value.limit, queryDto.value)
    list.value = data.list
    total.value = data.total
}

const searchSysRole = () => {
    fetchData()

}

const resetData = () => {
    queryDto.value.roleName = ""
    fetchData()
}
// 点击添加弹出框
const addShow = () => {
    // 清空数据
    sysRole.value = {}
    dialogVisible.value = true
}
// 添加或修改请求方法
const submit = async () => {
    if (sysRole.value.id) {
        // 修改
        const { data, code, message } = await UpdateSysRole(sysRole.value)
        if (code === 200) {
            // 关闭弹框
            dialogVisible.value = false
            // 提示信息
            ElMessage.success(message)
            fetchData()
        }
    } else {
        // 添加
        const { data, code, message } = await AddSysRole(sysRole.value)
        if (code === 200) {
            // 关闭弹框
            dialogVisible.value = false
            // 提示信息
            ElMessage.success(message)
            fetchData()
        }
    }

}

// 弹出框进行数据修改
const editShow = (row) => {
    // ... 对象扩展运算符 表示对象复制
    sysRole.value = { ...row }
    dialogVisible.value = true
}

// 删除数据
const deleteById = (row) => {
    ElMessageBox.confirm('此操作将永久删除该记录, 是否继续?', 'Warning', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning',
    }).then(async () => {
        const { code } = await DeleteSysRole(row.id)
        if (code === 200) {
            ElMessage.success('删除成功')
            pageParams.value.page = 1
            fetchData()
        }
    })
}

const doAssign = async () => {
    const checkedNodes = tree.value.getCheckedNodes() ; // 获取选中的节点
    const checkedNodesIds = checkedNodes.map(node => {  // 获取选中的节点的id
        return {
            id: node.id,
            isHalf: 0
        }
    })
        
    // 获取半选中的节点数据，当一个节点的子节点被部分选中时，该节点会呈现出半选中的状态
    const halfCheckedNodes = tree.value.getHalfCheckedNodes() ; 
    const halfCheckedNodesIds = halfCheckedNodes.map(node => {   // 获取半选中节点的id
        return {
            id: node.id,
            isHalf: 1
        }
    })
        
    // 将选中的节点id和半选中的节点的id进行合并
    const menuIds = [...checkedNodesIds , ...halfCheckedNodesIds]  
    console.log(menuIds);

    // 构建请求数据
    const assignMenuDto = {
        roleId: roleId,
        menuIdList: menuIds
    }
 
    // 发送请求
    await DoAssignMenuIdToSysRole(assignMenuDto) ;
    ElMessage.success('操作成功')
    dialogMenuVisible.value = false

} 
</script>

<style scoped>
.search-div {
    margin-bottom: 10px;
    padding: 10px;
    border: 1px solid #ebeef5;
    border-radius: 3px;
    background-color: #fff;
}

.tools-div {
    margin: 10px 0;
    padding: 10px;
    border: 1px solid #ebeef5;
    border-radius: 3px;
    background-color: #fff;
}
</style>